APA (7th ed.) Citation

British Standards Institution. (1967). Specification for essential characteristics of 35mm microfilm reading apparatus. The Institution.

Chicago Style (17th ed.) Citation

British Standards Institution. Specification for Essential Characteristics of 35mm Microfilm Reading Apparatus. London: The Institution, 1967.

MLA (8th ed.) Citation

British Standards Institution. Specification for Essential Characteristics of 35mm Microfilm Reading Apparatus. The Institution, 1967.

Warning: These citations may not always be 100% accurate.